The Only 46 Words of Health Advice You'll Ever Need

In no particular order:

• Avoid trans fats.
• Substitute unsaturated fats for saturated if you can.
• Cook from fresh whole ingredients.
• Minimize restaurant and ultra-processed foods.
• Cultivate friendships.
• Don't smoke.
• Nurture sleep.
• Drink alcohol at most moderately.
• Exercise as often as you can enjoy
• Only drink those calories that you love

Comparatively, everything else is minutia.